francis garachon



P. GARAGHON. LOOK.

No. 9,070. Patented June 29, 1852.

UNITED STATES PATENT onF1oE.;

FRANCIS GARACHON, OF NEW YORK, N. Y.

LOCK.

Specification of Letters Patent No. 9,070, dated June 29, 1852.

T 0 all whom it may concern:

Be it known that I, FRANCIS GARACHON, of the city, county, and State ofNew York, have invented a new and useful Improvement in Locks; and I dohereby declare the following to be a full and clear description of thesame.

The nature of my invention consists in the arrangement of the look, acheck lever, and its accessories for latching'and unlatching the boltrelatively to a check lever for locking the revolving plate, whereby theauxiliary key acts upon the former by being lifted endwise and upon thelatter by its bit when revolving in the usual manner.

But to describe my invention more particularly, I will refer to theaccompanying drawings forming a part of this schedule, the same lettersof reference wherever they occur referring to the same parts.

Figure 1, is a view of the face of the lock, showing the two independentkeyholes; Fig. 2, is a view of the face of the lock, having the capplate removed, and showing the bolt thrown back, and by the dottedoutline of the key in the tumbler, and direction of the arrow, theposition for throwing the bolt. Fig. 3, is a front view of the same,showing the position of the bolt as thrown forward, and position of thekey and tumbler for throwing it back. Fig. 4, is a representation of aninner cap plate secured over the tumbler, check lever, &c. Fig. 5, is arepresentation of the bolt. Fig. 6, is a representation of the edge ofthe bolt, showing the position of the check spring underneath it. Fig.7, is a face view of the check spring. Fig. 8, is a view of the claspfor the end of the bolt to run in, having the cap removed so as toexhibit the position of the check spring under the bolt, and checkspring lever for operating it. Fig. 9, is a sectional view of the frontend of the clasp, showing the check spring lever, and key and wards ofthe check key, through the line a, m, Fig. 2. Figs. 10 and 11, are viewsof the upper and lower plates of the revolving tumbler, Fig. 11, showingthe arrangement of the wards. Fig. 12, is a cut sectional view of thetumbler, through the line x m (of Fig. 11) with the stem of therevolving key. Fig. 13, is a' view of the bolt key.

Letter A, A, case of the lock.

B is the outer cap plate of the lock, and B, is the inner cap platesecured over the tumbler, &c., and through which are cut key holes forthe bolt key and check key.

C, is the bolt. Thisbolt is made with two or more prongs as may berequired. Through the face of it is cut an H shaped slot D, for theinsertion of a port or stud E, on the main check F, for holding the boltwhen either projected out or in, and which is held securely in positionby the main spring G, resting on the back of it, and secured at theopposite end by a screw bolt to the plate of the lock. On the back endand lower side of the bolt, where it enters the clasp, is also a smallcheck stud H, (see Fig. 6, and dotted outline in Fig. 5), and also anotch J, cut in the edge of it for the key to operate against, inthrowing the bolt out or in.

Letter K, is the tumbler. This tumbler is made from two plates of metal,and between which the'wards L, for the bolt key are arranged, andsecured to the lower plate K These wards are put together so as to forma figure 5, and by their position prevent the admission of a pick, orother in strument, except the proper key, to operate on the notch J, inthe bolt for throwing it.

Letter M, is the stem of the tumbler, which is surrounded by a squarebox N; and P, P, P, are studs, and screw holes for securing the upperand lower plates of the tumbler together.

Letter R, is a small half circular notch, cut in theedge of the lowerplate K of the tumbler, for the purpose of holding it, by means of thelever S, and spring S at the lower side of the tumbler, and attached tothe plate or case A, when the revolving kev T, has exposed the keyholeof the tumbler for the admission of the key U. A

Letter V, is a small check pin inserted in the face of the plate K ofthe tumbler. (See- Figs. 11 and 12, and dotted outlines of it in Figs. 2and 3 in the tumbler.) This pin when the tumbler is revolved (in thedirection of the arrow in Fig. 2), by the bolt key, to project the bolt,is brought around so as to fall or spring into the notched end of thecheck lever W, and thereby prevent the bolt key'from being withdrawnfrom the lock till the check key Y, has been inserted to raise the backend of the check lever W, to allow the key and tumbler to rotateforward. This check lever is secured to the plate A, by a fulcrum Whaving its back end extending across the wards of the check key, andheld down by means of a spring Z.

Letter a is the cap of the check key wards, and through which the checkkey Y, is inserted on the stem 6 In the front end of this cap plate a isa small slot and opening F, in which rests the back end of the checkspring lever 9 This lever, (see Fig. 9), is secured by a fulcrum screw72?, to the front end of the clasp k for the bolt, and has its back endbent in such a manner as to enter the small slot and opening F, in thecap a that the ward of the check key Y, may raise it, for the purpose ofdepressing the opposite end inserted in a hook or bracket of, on thelower side of the check spring 71 This spring is securedto the plate A,of the look, by means of screws, directly under the bolt, and is bent insuch a manner, that its back end, resting in a groove in the clasp forthe bolt, is always Dressing against its lower face, so that when thebolt is projected forward, thestud H, (see Fig. 6) enters the opening 79in the back end of the spring, and thereby preventing the bolt frombeing thrown back except the check key is inserted to release it.Letters 1* r &c., are representations of screw holes, and studs, forbolting or screwing down the inner cap plate 13'', and outer plate B tothe case A. r

The operation of thislock is that when it is desirous to lock it, is toinsert first the key T, and on turning it, the small projection on itslower edge falls into a hole in the box N, of the tumbler (see Fig. 12)and thereby causes the tumbler to turn with it till the check lever S,falls into the half circular notch B, when it is stopped. The key T, isnow withdrawn and the bolt key U, is inserted, and being turned in thedirection of the arrow in Fig. 2, falls into the notch J, and liftingthe check stud E, attached to the check F, from the check in the end ofthe slot D, projects the bolt forward, and at the same time locks thetumbler, so that it can not move back or forward, to withdraw the key,by means of the forked end of the check lever V, clasping the pin V (seeFig. 3) in the upper face of the plate K of the tumbler. In thisposit-ion the check key Y, is inserted, and turned on the stem, firsthalf way around, so that the ward can act on the back end of the leverW, to relieve the pin V, and allow the tumbler to move forward, so thatthe bolt key may be withdrawn, and at the same time allow th stud H, onthe lower and back end of the bolt to enter the hole 9 in the check spr'n When this is done the bolt and chec keys are withdrawn, and therevolver key T is inserted, and turned, so as to conceal'the wards ofthe lock under the plate B, and is then withdrawn also, leaving only theopening around the stem'as the means of access to the interior of thelock. To return i the bolt, the key T, must again be inserted, andturned as before described to expose the keyhole, for the key U, whichon the",

withdrawal of the key T, is introduced, andf turned in the direction ofthe arrow (in Fig. 3) till it falls into the notch J, to lift. the studE, out of the check notch, inthe slot D, but in which position the boltcan not beshot back in consequence of the stud H, being in the hole 29of the check spring n To release this, the check key Y, is in- A serted,and when turned half around on its stem, it releases the pin V, from theforkedend of the check lever W, and then by an upward or backward motion,given'to the key Y, as if aboutto withdraw itfrom the lock, the upperend of the ward of the key is forced (see Fig. 9) through the opening inthe plate (4 of the slot f against the bent end of the check springlever 9 so as to lift it, and thereby depress the end of the checkspring, so as to release-the stud H, and allow, (the check key beingretained in that position all the while,) the bolt key to be turned soas to shoot the bolt back, when the bolt key and check key may bewithdrawn.

Having now described my invention, I will proceed to state what I claim,and desire to secure by Letters Patent of the United States Thearrangement of the lever 9 and its accessories for latching andunlatching the bolt relative to the lever W, for locking the revolvingkey plate, whereby the auxiliary key acts upon the former by beinglifted endwise, and upon the latter by its bit, y when revolving in theusual manner, sub- 10 stantially as set forth.

F. GARAOHON. \Vitnessesf 1 CHARLES L. BARRE'I'I, WM. SINCLAIR.

